Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/47332
Title: Friction-wear behavior of shot peened aluminium 7075-T651 alloy
Authors: Abeens, M
Muruganatham, R
Arulvel, S
Keywords: Aluminium-7075-T651;Shot peening;Friction;Wear
Issue Date: Feb-2019
Publisher: NISCAIR-CSIR, India
Abstract: The present study reports the friction-wear behavior of un-peened and shot peened aluminium 7075-T651 alloy against aluminium 7075-T651 alloy in dry sliding condition. Shot peening was done using CI steel ball (40-45 HRC) with 0.6 mm diameter. Phase Structure, hardness, compressive residual stress, surface morphology and surface features are characterized using X-ray diffractometer (XRD), Vickers hardness tester, noncontact-surface profile meter and scanning electron microscope (SEM). Sliding wear test were conducted against aluminium 7075-T651 alloy in dry sliding condition at room temperature using a pin on disc apparatus. A 25% increase in the hardness was seen for shot peened aluminium 7075-T651 alloy. Shot peened aluminium 7075-T651 alloy has induced maximum compressive residual stress of -188 MPa. No new phases were formed for the shot peened aluminium 7075-T651 alloy, however, the shift in the plane is observed. There was also a drastically increase in surface roughness in spite of the peening process. Adhesive wear was the dominant wear mechanism for the un-peened specimen, whereas, it was reduced for the shot peened surfaces.
Page(s): 20-26
URI: http://nopr.niscair.res.in/handle/123456789/47332
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.26(1) [February 2019]

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